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| electronic:boards:arduino:unosmdclone [2026/10/22 04:41] – [Examples] tony | electronic:boards:arduino:unosmdclone [2026/10/22 21:00] (current) – [Schematics] tony |
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| ===== Overview ===== | ===== Overview ===== |
| This is a budget no-name Arduino UNO SMD clone with an CH340G USB interface rather than an ATmega16U2, and a ceramic resonator instead of the more precise and stable 16MHz crystal oscillator. My example had a very crookedly mounted USB-B socket, and when I tried to resolder it flat onto the board it shorted something, disabling the USB port - so had to undo my fix :-(, and put up with it pressing on the underside of any Arduino shield mounted above. | This is a budget no-name Arduino Uno SMD clone with an CH340G USB interface rather than an ATmega16U2. I also note both the genuine Arduino Uno SMD and this one use a ceramic resonator instead of a more precise and stable 16MHz crystal oscillator. My example had a very crookedly mounted USB-B socket, and when I tried to resolder it flat onto the board it shorted something, disabling the USB port - so had to undo my fix :-(, and put up with it pressing on the underside of any Arduino shield mounted above. |
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| So a cheap Arduino Uno clone for applications not requiring precise timing or expectations of longevity :-). | So a cheap Arduino Uno clone for applications not requiring precise timing or expectations of longevity :-). |
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| ===== Schematics ===== | ===== Schematics ===== |
| /* {{electronic:boards:arduino:uno_pighixxx.png?800|Pinout (unofficial)}} ((from https://web.archive.org/web/20171110175921/http://www.pighixxx.com/test/wp-content/uploads/2014/11/uno.png CCBYSA pighixxx.com)) | /* {{electronic:boards:arduino:uno_pighixxx.png?800|Pinout (unofficial)}} ((from https://web.archive.org/web/20171110175921/http://www.pighixxx.com/test/wp-content/uploads/2014/11/uno.png CCBYSA Alberto Piganti)) |
| {{electronic:boards:arduino:a000066-pinout.png?800|Pinout}} ((from https://docs.arduino.cc/resources/pinouts/A000066-full-pinout.pdf CCBYSA Arduino.cc)) */ | {{electronic:boards:arduino:a000066-pinout.png?800|Pinout}} ((from https://docs.arduino.cc/resources/pinouts/A000066-full-pinout.pdf CCBYSA Arduino.cc)) */ |
| {{electronic:boards:arduino:arduino-uno-rev-3-smd-clone-pinout-high-resolution.png?800|Pinout}} ((from https://mischianti.org/arduino-uno-rev-3-ch340-smd-clone-high-resolution-pinout-datasheet-and-specs/ CCBYNCND mischianti.org)) | {{electronic:boards:arduino:arduino-uno-rev-3-smd-clone-pinout-high-resolution.png?800|Pinout}} ((from https://mischianti.org/arduino-uno-rev-3-ch340-smd-clone-high-resolution-pinout-datasheet-and-specs/ CCBYNCND mischianti.org)) |
| \\ | \\ |
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| ^Genuine Arduino Uno R3 SMD :^ | ^Genuine Arduino Uno R3 SMD :^ |
| {{electronic:boards:arduino:arduino_uno_microcontroller.jpg?800|Genuine Arduino Uno R3 SMD top view}}((from https://commons.wikimedia.org/wiki/File:Arduino_UNO_microcontroller.jpg CCBYSA Alyona Makarenko)) | |
| | /* {{electronic:boards:arduino:arduino_uno_microcontroller.jpg?800|Genuine Arduino Uno R3 SMD top view}}((from https://commons.wikimedia.org/wiki/File:Arduino_UNO_microcontroller.jpg CCBYSA Alyona Makarenko)) */ |
| | {{electronic:boards:arduino:arduinounosmd.jpg?800|Genuine Arduino Uno R3 SMD top view}} ((from http://arduino.cc/en/uploads/Main/ArduinoUnoSmd.jpg CCBYSA arduino.cc)) |
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| ====== References and Additional Resources ====== | ====== References and Additional Resources ====== |
| * [[https://docs.arduino.cc/hardware/uno-rev3-smd|Arduino UNO SMD docs]] | * {{https://mischianti.org/wp-content/uploads/2023/11/Arduino-UNO-Rev-3-CH340-SMD-clone-manual.pdf|A Uno SMB clone manual}} |
| * {{https://docs.arduino.cc/resources/pinouts/A000066-full-pinout.pdf|Pinout details (official)}} | * [[https://docs.arduino.cc/hardware/uno-rev3-smd|Arduino UNO SMD docs (genuine version)]] |
| * {{https://docs.arduino.cc/resources/schematics/A000066-schematics.pdf|Schematic}} | * {{https://docs.arduino.cc/resources/pinouts/A000066-full-pinout.pdf|Pinout details (genuine version)}} |
| | * {{https://docs.arduino.cc/resources/schematics/A000066-schematics.pdf|Schematic (genuine version)}} |
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| <html><small><p>If any referenced page no longer exists, try looking for its URL on <a href="http://archive.org">http://archive.org</a>.</p></small></html> | <html><small><p>If any referenced page no longer exists, try looking for its URL on <a href="http://archive.org">http://archive.org</a>.</p></small></html> |